]G4 Mr. R. E. Turner on the 



broad, slightly depressed in the middle, the parapsidal furrows 

 very broad and deep. Median segment areolated. Abdomen 

 elongate-fusiform, slender at the base ; the apical dorsal 

 segment narrow, with short cerci, terebra very short. Radial 

 cell not quite extending to the apex of the fore wing ; first 

 cubital cell only divided from the discoidal on the apical 

 half, the cubital nervure obsolete on the basal half of the 

 cell ; second cubital cell long and narrow, about half as long 

 again on the cubitus as on the radius; second transverse 

 cubital nervure oblique, sloping outwards from the cubitus 

 to the radius, less than half as long as the second abscissa of 

 the radius ; recurrent nervure received near the base of the 

 second cubital cell ; anal cell with only one transverse 

 nervure, nervulus slightly postf ureal. 



Megalohelcon torresensis, sp. n. 



§ . Testacea ; mandibulis apice nigris ; alis hyalinis, venis fuscis ; 



cellula radiali raargiue costali anguste infuscata. 

 Long. 22 mm. 



$ . Antenna? as long as the thorax and abdomen combined, 

 second joint of the flagellum a little longer than the third, 

 twice as long as the first. Face rugulose, mesonoium finely 

 and closely punctured ; pleurae almost smooth, the grooves 

 very coarsely crenulated. Dorsal surface of the median 

 segment about equal to the scutellum in length ; with a 

 median carina and a slightly oblique lateral carina on each 

 side, all meeting the strong apical transverse carina ; on each 

 side of the segment is a strong carina reaching from the base 

 to the very large elongate spiracle ; the apical slope of the 

 segment has a small oval area at the base, with a median 

 longitudinal carina beyond it ; near the lateral margins are 

 two longitudinal carinas on each side. First tergite more 

 than three times as long as its apical breadth, the spiracles 

 just beyond one-third from the base, subtuberculate. Apical 

 ventral segment strongly compressed laterally, the terebra 

 very short, only slightly exserted, probably usually with- 

 drawn. 



Hab. Islands in Torres Straits. 



In the position of the recurrent nervure this resembles the 

 genus Brulieia, Sze*pl., but is very distinct otherwise. 

 Doubtless the large ocelli, the long antennae, and the pale 

 colouring indicate nocturnal habits. All other Helconinae 

 recorded from Australia are from S.E. Australia and Tas- 

 mania, and I never saw any species of the group dining my 

 loiii>- residence in North Queensland. 



